The first season of e² design concludes with a look to the future. 'Deeper Shades of Green' focuses on remarkable thinkers and designers of our time: Ken Yeang, Werner Sobek and William McDonough. Nothing short of geniuses, these architects are challenging society and environmental design philosophically, psychologically, technically, aesthetically, politically, and culturally. Each is radically changing the face of not only architecture, but of environmentalism.